Conservation Study – Handout

LCCN LONE STAR WATER SMART CONSERVATION STUDY ESTIMATED COST FOR PERMANENT WATER CONSUMPTION REDUCTION

NOTE: THIS TABLE IS FOR RETROFIT. NEW CONSTRUCTION INCREMENTAL COST FOR THESE CHANGES IS VERY LOW WITH THE EXCEPTION OF TURF GRASS WHICH SHOULD ABOUT THE SAME AS BELOW

REVISED OCTOBER 16, 2010

Home Owner Irrigation @ 120,000 Gallons Per Year (20,000/Month)

Item: Rain Sensor

  • Cost: $20.00
  • Available at: Box Stores
  • Installed Cost: $25.00 (1)
  • Savings Gal/Year: @15% 18,000
  • Water Cost Savings/YR: @ $5.00/1000G $90
  • 1st Year Savings: $65.00

Item: Moisture Sensor

  • Cost: $150-$300 (2)
  • Available at: Irrigators or Web
  • Installed Cost: $250-$400
  • Savings Gal/Year: @25% 30,000
  • Water Cost Savings/YR: $150
  • 1st Year Savings: -$100 to -$150 (3)

Item: Drip Irrigation

  • Cost: 100 LF $100
  • Available at: Box Stores
  • Installed Cost: $100
  • Savings Gal/Year: @50% 30,000
  • Water Cost Savings/YR: $150
  • 1st Year Savings: $50

Item: Retrofit Turf Grass 6,000 SQ-FT

  • Cost: Zoysia @ $0.39/sq ft Bermuda @ $0.22 sf
  • Available at:
  • Installed Cost: Z @ $2,340 B @ $1,320
  • Savings Gal/Year: Z @ 50% B @ 60,000
  • Water Cost Savings/YR: Z @ $300
  • 1st Year Savings: Z -$2,000 (3,4) B -$1,020 (3,4)

Plumbing Fixtures at 2.3 People Per House Hold (6)

Item: Toilets 3.4>1.6 G/F

  • Cost: two @ $300
  • Available at: Box Stores
  • Installed Cost: two @ $550
  • Savings Gal/Year: 8,815
  • Water Cost Savings/YR: $44
  • 1st Year Savings: ($506) (4)

Item: Shower Heads

  • Cost: Two @ $40
  • Available at: Box Stores
  • Installed Cost: Two @40
  • Savings Gal/Year: 2,183
  • Water Cost Savings/YR: $11
  • 1st Year Savings: ($25) (4)

Item: Aerators

  • Cost: Five @ $25
  • Available at: Box Stores
  • Installed Cost: Five @ $25
  • Savings Gal/Year: 168
  • Water Cost Savings/YR: $1
  • 1st Year Savings: ($24) (4)

Item: Clothes Washer

  • Cost: One @ 600
  • Available at: Box Stores
  • Installed Cost: One @600
  • Savings Gal/Year: 3,778
  • Water Cost Savings/YR: $19
  • 1st Year Savings: ($581) (4)

(4) Source: http://www.texaswatermatters.org/pdfs/articles/conservation_tips_3.pdf

 

  1. Home owner installed. Add $30-$50 for contractor
  2. Moisture sensor technology and installation techniques are developing quickly. Suggest careful analysis before purchase and
  3. Break even on Zoysia is 11.5 years. Break even on Bermuda is 6.5 years. Irrigation and plumbing water reduction investments should be long term without significant
  4. Retrofitting is expensive. Incentives will
  5. Low energy clothes washers also save electrical
  6. Census Quick Facts